Series-1 (Sep. – Oct. 2025) Sep. – Oct. 2025 Issue Statistics
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| Paper Type | : | Research Paper |
| Title | : | Drone: A Promising Tool In Applied Geology |
| Country | : | India |
| Authors | : | Sandeep Vansutre || Farhaan Ahmad || Siddharth Singh |
 |
: | 10.9790/0990-1305010109  |
Abstract: The rapid advancement of Unmanned Aerial Vehicle (UAV) technology has significantly altered conventional surveying and geospatial data acquisition methods. This study presents a drone-based survey that took place at the Government NPG College of Science campus in Raipur, Chhattisgarh, with the specific goal of showcasing the practical application of drones in applied geology and geospatial studies. The UAV model used for this survey was the Surveyaan, equipped with a 20 MP RGB sensor, which was employed to capture high-resolution imagery. The captured imagery was then processed into orthomosaics......
Keywords: Unmanned Aerial Vehicle (UAV), Digital Surface Model (DSM), Digital Terrain Model (DTM).
[1].
Accuracy Assessment Of Low-Cost Unmanned Aerial Vehicle Photogrammetry. (2021). Alexandria Engineering Journal.
[2].
Bemis, S. P., Et Al. (2014). Ground-Based And UAV-Based Photogrammetry: A Multi-Scale, High-Resolution Mapping Tool For Structural Geology And Paleoseismology. Journal Of Structural Geology, 69.
[3].
Chen, B. (2025). Applications Of UAV In Landslide Research: A Review. Springer.
[4].
Colomina, I., & Molina, P. (2014). Unmanned Aerial Systems For Photogrammetry And Remote Sensing: A Review. ISPRS Journal Of Photogrammetry And Remote Sensing, 92, 79–97.
[5].
Hao, J., Zhang, X., Wang, C., Wang, H., & Wang, H. (2023). Application Of UAV Digital Photogrammetry In Geological Investigation And Stability Evaluation Of High-Steep Mine Rock Slope. Drones, 7(3), 198.
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| Paper Type | : | Research Paper |
| Title | : | Aspects Of The UNB_TopoDens Lateral Density Global Model In Brazil |
| Country | : | Brazil |
| Authors | : | Roosevelt De Lara Santos Jr |
|
: | 10.9790/0990-1305011021 |
Abstract: This study aims to present the main numerical and graphical aspects of the global variable lateral density model UNB_TopoDens, in the continental region of Brazil. The point spacing is 5'x5' of spherical arc, totaling 101,006 stations. The resulting mean lateral density and its standard deviation were 2424.7 kg/m³ and 200.4 kg/m³, respectively. These values are quite close to those of the regional lateral density model LTD_Brazil, with a lateral density of 2459 kg/m³ and a standard deviation ranging between 8 and 351 kg/m³. The numerical variations between the UNB_TopoDens models and the classic model (Harkness) with a constant global......
Keywords: Lateral density; Global model; UNB_TopoDens; ETOPO1; EIGEN-6C4.
[1].
Bear, G. W., Al-Shukri, H. J., & Rudman, A. J. (1995). Linear Inversion Of Gravity Data For 3-D Density Distributions. Geophysics, 60(5), 1354–1364.
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Carmichael, R. S. (1989). Practical Handbook Of Physical Properties Of Rocks And Minerals. CRC Press.
[3].
IBGE – Instituto Brasileiro De Geografia E Estatística. (2015). Define A Data De Término Do Período De Transição Definido Na RPR 01/2005 E Dá Outras Providências Sobre A Transformação Entre Os Referenciais Geodésicos Adotados No Brasil.
Https://Geoftp.Ibge.Gov.Br/Metodos_E_Outros_Documentos_De_Referencia/Normas/Rpr_01_2015_Sirgas2000.Pdf.
[4].
ICGEM – International Centre For Global Earth Models. (2019). EIGEN-6C4. Https://Icgem.Gfz-Potsdam.De/Calcgrid.
[5].
Foerste, C., Bruinsma, S. L., Abrykosov, O., Lemoine, J. M., Marty, J. C., Flechtner, F., Balmino, G., Barthelmes, F., & Biancale, R. (2014). EIGEN-6C4: The Latest Combined Global Gravity Field Model Including GOCE Data Up To Degree And Order 2190 Of GFZ Potsdam And GRGS Toulouse. GFZ Data Services. Https://Doi.Org/10.5880/Icgem.2015.1